./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:41:57,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:41:57,612 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:41:57,619 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:41:57,619 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:41:57,620 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:41:57,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:41:57,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:41:57,624 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:41:57,624 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:41:57,625 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:41:57,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:41:57,626 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:41:57,627 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:41:57,628 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:41:57,629 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:41:57,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:41:57,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:41:57,632 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:41:57,633 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:41:57,634 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:41:57,635 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:41:57,637 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:41:57,637 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:41:57,637 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:41:57,638 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:41:57,639 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:41:57,639 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:41:57,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:41:57,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:41:57,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:41:57,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:41:57,642 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:41:57,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:41:57,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:41:57,643 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:41:57,643 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 03:41:57,653 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:41:57,653 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:41:57,653 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:41:57,653 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 03:41:57,654 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 03:41:57,654 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 03:41:57,654 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 03:41:57,655 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:41:57,655 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 03:41:57,655 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:41:57,655 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 03:41:57,655 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:41:57,655 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:41:57,656 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:41:57,656 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:41:57,656 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 03:41:57,656 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:41:57,656 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:41:57,656 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:41:57,657 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:41:57,657 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:41:57,657 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:41:57,657 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:41:57,657 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:41:57,658 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:41:57,658 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:41:57,658 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 03:41:57,658 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:41:57,658 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:41:57,658 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a [2018-11-10 03:41:57,681 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:41:57,690 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:41:57,692 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:41:57,693 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:41:57,693 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:41:57,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-10 03:41:57,731 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/data/aa73c5c98/61530ba154a94502a9cb8c939d515e4f/FLAGade4d60c5 [2018-11-10 03:41:58,147 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:41:58,147 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/sv-benchmarks/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-10 03:41:58,152 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/data/aa73c5c98/61530ba154a94502a9cb8c939d515e4f/FLAGade4d60c5 [2018-11-10 03:41:58,164 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/data/aa73c5c98/61530ba154a94502a9cb8c939d515e4f [2018-11-10 03:41:58,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:41:58,168 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 03:41:58,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:41:58,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:41:58,171 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:41:58,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aea677a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58, skipping insertion in model container [2018-11-10 03:41:58,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:41:58,196 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:41:58,309 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:41:58,312 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:41:58,324 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:41:58,333 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:41:58,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58 WrapperNode [2018-11-10 03:41:58,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:41:58,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:41:58,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:41:58,334 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:41:58,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... [2018-11-10 03:41:58,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:41:58,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:41:58,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:41:58,362 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:41:58,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:41:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:41:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:41:58,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:41:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 03:41:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 03:41:58,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 03:41:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 03:41:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:41:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:41:58,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:41:58,597 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:41:58,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:41:58 BoogieIcfgContainer [2018-11-10 03:41:58,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:41:58,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:41:58,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:41:58,602 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:41:58,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:41:58" (1/3) ... [2018-11-10 03:41:58,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112b520f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:41:58, skipping insertion in model container [2018-11-10 03:41:58,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:41:58" (2/3) ... [2018-11-10 03:41:58,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112b520f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:41:58, skipping insertion in model container [2018-11-10 03:41:58,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:41:58" (3/3) ... [2018-11-10 03:41:58,606 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-10 03:41:58,616 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:41:58,623 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 03:41:58,639 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 03:41:58,662 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 03:41:58,663 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:41:58,663 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:41:58,663 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:41:58,664 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:41:58,664 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:41:58,664 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:41:58,664 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:41:58,664 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:41:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 03:41:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 03:41:58,686 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:41:58,687 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:41:58,689 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:41:58,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:41:58,695 INFO L82 PathProgramCache]: Analyzing trace with hash -696314067, now seen corresponding path program 1 times [2018-11-10 03:41:58,696 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:41:58,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:41:58,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:41:58,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:41:58,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:41:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:41:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:41:58,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 03:41:58,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 03:41:58,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 03:41:58,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 03:41:58,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 03:41:58,928 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2018-11-10 03:41:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:41:59,088 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2018-11-10 03:41:59,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 03:41:59,090 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-10 03:41:59,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:41:59,097 INFO L225 Difference]: With dead ends: 30 [2018-11-10 03:41:59,097 INFO L226 Difference]: Without dead ends: 14 [2018-11-10 03:41:59,100 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 03:41:59,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-10 03:41:59,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-10 03:41:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-10 03:41:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-10 03:41:59,125 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-11-10 03:41:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:41:59,125 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-10 03:41:59,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 03:41:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-10 03:41:59,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 03:41:59,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:41:59,126 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:41:59,126 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:41:59,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:41:59,127 INFO L82 PathProgramCache]: Analyzing trace with hash -112838900, now seen corresponding path program 1 times [2018-11-10 03:41:59,127 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:41:59,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:41:59,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:41:59,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:41:59,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:41:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:41:59,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:41:59,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 03:41:59,232 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 03:41:59,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:41:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:41:59,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:41:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:41:59,358 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 03:41:59,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-11-10 03:41:59,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 03:41:59,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 03:41:59,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-10 03:41:59,359 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-11-10 03:41:59,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:41:59,456 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-10 03:41:59,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 03:41:59,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-10 03:41:59,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:41:59,457 INFO L225 Difference]: With dead ends: 22 [2018-11-10 03:41:59,457 INFO L226 Difference]: Without dead ends: 16 [2018-11-10 03:41:59,457 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-11-10 03:41:59,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-10 03:41:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-10 03:41:59,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 03:41:59,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-10 03:41:59,460 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-10 03:41:59,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:41:59,460 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-10 03:41:59,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 03:41:59,460 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-10 03:41:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 03:41:59,460 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 03:41:59,460 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 03:41:59,461 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 03:41:59,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 03:41:59,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1126058196, now seen corresponding path program 2 times [2018-11-10 03:41:59,461 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 03:41:59,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 03:41:59,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:41:59,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 03:41:59,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 03:41:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 03:41:59,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-10 03:41:59,577 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 03:41:59,578 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 03:41:59,595 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 03:41:59,612 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 03:41:59,613 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 03:41:59,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 03:41:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 03:41:59,708 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 03:41:59,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2018-11-10 03:41:59,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 03:41:59,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 03:41:59,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-11-10 03:41:59,709 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 11 states. [2018-11-10 03:41:59,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 03:41:59,845 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-10 03:41:59,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 03:41:59,846 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2018-11-10 03:41:59,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 03:41:59,846 INFO L225 Difference]: With dead ends: 19 [2018-11-10 03:41:59,846 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 03:41:59,847 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-11-10 03:41:59,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 03:41:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 03:41:59,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 03:41:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 03:41:59,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-10 03:41:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 03:41:59,848 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 03:41:59,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 03:41:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 03:41:59,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 03:41:59,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 03:41:59,928 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:41:59,928 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:41:59,928 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:41:59,928 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:41:59,928 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0)) [2018-11-10 03:41:59,928 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:41:59,928 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:41:59,928 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 8 65) the Hoare annotation is: (or (< 0 |old(~__return_72~0)|) (< |old(~__return_72~0)| 0) (and (<= 0 ~__return_72~0) (<= ~__return_72~0 0))) [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 65) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 65) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2018-11-10 03:41:59,929 INFO L421 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (or (< 0 |old(~__return_72~0)|) (< |old(~__return_72~0)| 0) (let ((.cse1 (+ main_~main__i~0 main_~main__y~0)) (.cse0 (+ main_~main__j~0 main_~main__x~0))) (and (<= .cse0 .cse1) (<= 0 ~__return_72~0) (<= .cse1 .cse0) (<= ~__return_72~0 0)))) [2018-11-10 03:41:59,929 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2018-11-10 03:41:59,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:41:59 BoogieIcfgContainer [2018-11-10 03:41:59,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:41:59,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:41:59,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:41:59,939 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:41:59,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:41:58" (3/4) ... [2018-11-10 03:41:59,942 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 03:41:59,947 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 03:41:59,947 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 03:41:59,951 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-10 03:41:59,951 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 03:41:59,974 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (0 < \old(__return_72) || \old(__return_72) < 0) || (((main__j + main__x <= main__i + main__y && 0 <= __return_72) && main__i + main__y <= main__j + main__x) && __return_72 <= 0) [2018-11-10 03:41:59,990 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_84532bcc-9d9b-4c8f-8c59-9ef8ae1b8e48/bin-2019/uautomizer/witness.graphml [2018-11-10 03:41:59,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:41:59,991 INFO L168 Benchmark]: Toolchain (without parser) took 1823.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 959.8 MB in the beginning and 972.5 MB in the end (delta: -12.7 MB). Peak memory consumption was 120.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:41:59,992 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:41:59,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:41:59,993 INFO L168 Benchmark]: Boogie Preprocessor took 27.44 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:41:59,993 INFO L168 Benchmark]: RCFGBuilder took 237.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 949.1 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:41:59,994 INFO L168 Benchmark]: TraceAbstraction took 1339.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.2 MB in the end (delta: 148.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. [2018-11-10 03:41:59,994 INFO L168 Benchmark]: Witness Printer took 52.00 ms. Allocated memory is still 1.2 GB. Free memory was 975.2 MB in the beginning and 972.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:41:59,996 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.35 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.44 ms. Allocated memory is still 1.0 GB. Free memory is still 949.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 237.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 949.1 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1339.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.2 MB in the end (delta: 148.1 MB). Peak memory consumption was 148.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.00 ms. Allocated memory is still 1.2 GB. Free memory was 975.2 MB in the beginning and 972.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (0 < \old(__return_72) || \old(__return_72) < 0) || (((main__j + main__x <= main__i + main__y && 0 <= __return_72) && main__i + main__y <= main__j + main__x) && __return_72 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 41 SDslu, 121 SDs, 0 SdLazy, 120 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 9 NumberOfFragments, 55 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 123 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 4507 SizeOfPredicates, 12 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...